I want to upgrade the speakers of my 2005 Volvo xc 70 , but do not want to tamper with the existing radio ( hu 650 ?) seems that here are 6 speakers 2 coaxials in front door , two in rear door and two in the loading area. i do not know if there is an amplifier fitted , it seems so but the user manuel is not clear . can someone possibly assist with a solution?
thank you Louis Hattingh

Thank you for the assistance, do you possibly have information about the loudspeaker sizes that fit in the stock space ie front door , rear door and rear? that would be extremely helpful.Thank you for the assistance, do you possibly have information about the loudspeaker sizes that fit in the stock space ie front door , rear door and rear? that would be extremely helpful.

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Unless you are a master automotive electrical engineer, or a volvo service tech with mainline access, this will be lots of trouble. The original head units for volvos were flashed at the dealer or factory to each individual car. Even if you got all the wires to match up between years/models, you would still need to take the finished rig to a dealer or specialist to get it "relearned". Plan on spending hundreds of dollars no matter which way you go.

The HU-605 radio is made by MITSUBISHI and unfortunately the code is not normally available for free (using the Serial Number ) from anywhere on the Internet as access is required to the original factory database which is only available at the Main Volvo Dealer ( and just a few of the larger Decode Services)

However , many VOLVO Dealers will provide this code for free provided you can quote the car`s VIN number+ Radio Serial Number and have all the car documents available.

If not, then the alternative option is a Decode Service or your local Car Radio / Audio Store who will plug in a laptop to electronically read/recode the memmory chip (EEPROM)

Simply hold down the button you want to use (there are 3 for up to 3 different garage doors) until the light flashes and keep holding it down. Now place the garage door opener up near the sun visor and hold it's button down until the light on the on button you are programming flashes. It is now programed. The other 2 are done the same way. Good luck. It took me a while to find the info, it's not in any Volvo manuals I could find.